Last Updated on July 2, 2025 by pg@petergamma.org
William Croft wrote in the www.openbci.com forum on June 9, 2025 :
@PBarrows, no, the Wifi Shield is no longer supported. The larger capacitor was ‘thought’ to be a temporary workaround for this Cyton-Shield issue. But in fact the root cause is in the variant of the Wifi Shield firmware that talks to Cyton. It seems that that interaction between the Cyton firmware and the Shield firmware, is causing the Shield ESP8266 chip to draw excessive current, hence the voltage dips. And eventually dropped packets.
This never happened when the Shield was used the Ganglion. So at least that configuration is still workable. After some thought the engineering team decided it would be better to move on from the Shield concept, and has plans for a V2 Cyton board. (Incorporating better faster Wifi link.) Unclear timeframe at this point, because the Galea product line took precedence.
If you have a Ganglion-Shield setup, everything should still work fine.
Regards, William
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The bugs in the firmware of the OpenBCI Wifi shield where described and resolved. You can find the links to it here on www.petergamma.org:
https://petergamma.org/tag/openbci_wifi_shield
We do not know of anyone else than William Croft who writes that this issue is Ganglion or Cyton specific.